forked from Bananymous/banan-os
30 lines
471 B
C++
30 lines
471 B
C++
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#include <fcntl.h>
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#include <stdio.h>
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int main(int argc, char** argv)
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{
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for (int i = 1; i < argc; i++)
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{
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FILE* fp = fopen(argv[i], "r");
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if (fp == nullptr)
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{
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perror("nullptr");
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continue;
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}
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uint8_t sum = 0;
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uint8_t buffer[1024];
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while (size_t ret = fread(buffer, 1, sizeof(buffer), fp))
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for (int j = 0; j < ret; j++)
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sum += buffer[j];
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if (ferror(fp))
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perror("fread");
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else
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printf("%s: %02x\n", argv[i], sum);
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fclose(fp);
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}
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}
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